static struct ref_iterator *packed_ref_iterator_begin(
struct ref_store *ref_store,
const char *prefix, unsigned int flags)
{
struct packed_ref_store *refs;
struct snapshot *snapshot;
const char *start;
struct packed_ref_iterator *iter;
struct ref_iterator *ref_iterator;
unsigned int required_flags = REF_STORE_READ;
if (!(flags & DO_FOR_EACH_INCLUDE_BROKEN))
required_flags |= REF_STORE_ODB;
refs = packed_downcast(ref_store, required_flags, "ref_iterator_begin");
/*
* Note that `get_snapshot()` internally checks whether the
* snapshot is up to date with what is on disk, and re-reads
* it if not.
*/
snapshot = get_snapshot(refs);
if (!snapshot->buf)
return empty_ref_iterator_begin();
iter = xcalloc(1, sizeof(*iter));
ref_iterator = &iter->base;
base_ref_iterator_init(ref_iterator, &packed_ref_iterator_vtable, 1);
iter->snapshot = snapshot;
acquire_snapshot(snapshot);
if (prefix && *prefix)
start = find_reference_location(snapshot, prefix, 0);
else
start = snapshot->buf + snapshot->header_len;
iter->pos = start;
iter->eof = snapshot->eof;
strbuf_init(&iter->refname_buf, 0);
iter->base.oid = &iter->oid;
iter->flags = flags;
if (prefix && *prefix)
/* Stop iteration after we've gone *past* prefix: */
ref_iterator = prefix_ref_iterator_begin(ref_iterator, prefix, 0);
return ref_iterator;
}
struct ref_iterator *cache_ref_iterator_begin(struct ref_cache *cache,
const char *prefix,
int prime_dir)
{
struct ref_dir *dir;
struct cache_ref_iterator *iter;
struct ref_iterator *ref_iterator;
struct cache_ref_iterator_level *level;
dir = get_ref_dir(cache->root);
if (prefix && *prefix)
dir = find_containing_dir(dir, prefix, 0);
if (!dir)
/* There's nothing to iterate over. */
return empty_ref_iterator_begin();
if (prime_dir)
prime_ref_dir(dir, prefix);
iter = xcalloc(1, sizeof(*iter));
ref_iterator = &iter->base;
base_ref_iterator_init(ref_iterator, &cache_ref_iterator_vtable, 1);
ALLOC_GROW(iter->levels, 10, iter->levels_alloc);
iter->levels_nr = 1;
level = &iter->levels[0];
level->index = -1;
level->dir = dir;
if (prefix && *prefix) {
iter->prefix = xstrdup(prefix);
level->prefix_state = PREFIX_WITHIN_DIR;
} else {
level->prefix_state = PREFIX_CONTAINS_DIR;
}
return ref_iterator;
}
static struct ref_iterator *packed_reflog_iterator_begin(struct ref_store *ref_store)
{
return empty_ref_iterator_begin();
}
